Results 31 to 40 of about 1,208 (130)

Example of a six-dimensional LCK solvmanifold

open access: yesComplex Manifolds, 2017
The purpose of this paper is to prove that there exists a lattice on a certain solvable Lie group and construct a six-dimensional locally conformal Kähler solvmanifold with non-parallel Lee form.
Sawai Hiroshi
doaj   +1 more source

Hypercomplex Almost Abelian Solvmanifolds

open access: yesThe Journal of Geometric Analysis, 2023
Minor ...
Adrián Andrada, María Laura Barberis
openaire   +2 more sources

An extention of Nomizu’s Theorem –A user’s guide–

open access: yesComplex Manifolds, 2016
For a simply connected solvable Lie group G with a lattice Γ, the author constructed an explicit finite-dimensional differential graded algebra A*Γ which computes the complex valued de Rham cohomology H*(Γ\G, C) of the solvmanifold Γ\G.
Kasuya Hisashi
doaj   +1 more source

Examples of solvmanifolds without LCK structures

open access: yesComplex Manifolds, 2018
The purpose in this paper is to construct solvmanifolds without LCK structures such that the complex structure is left ...
Sawai Hiroshi
doaj   +1 more source

Kahler Structures on Compact Solvmanifolds [PDF]

open access: yesProceedings of the American Mathematical Society, 1990
In a previous paper, the authors proved that the only compact nilmanifolds Γ ∖ G \Gamma \backslash G which admit Kähler structures are tori. Here we consider a more general class of homogeneous spaces Γ ∖ G \Gamma \backslash G , where G G is a ...
Carolyn S. Gordon, Chal Benson
openaire   +3 more sources

A non-Sasakian Lefschetz K-contact manifold of Tievsky type [PDF]

open access: yes, 2016
We find a family of five dimensional completely solvable compact manifolds that constitute the first examples of $K$-contact manifolds which satisfy the Hard Lefschetz Theorem and have a model of Tievsky type just as Sasakian manifolds but do not admit ...
Cappelletti-Montano, Beniamino   +3 more
core   +2 more sources

Invariant solutions to the Strominger system and the heterotic equations of motion [PDF]

open access: yes, 2017
We construct many new invariant solutions to the Strominger system with respect to a 2-parameter family of metric connections $\nabla^{\varepsilon,\rho}$ in the anomaly cancellation equation.
Otal, A., Ugarte, L., Villacampa, R.
core   +3 more sources

The Classification of Flat Solvmanifolds [PDF]

open access: yesTransactions of the American Mathematical Society, 1978
This paper contains a complete algebraic characterization of the fundamental groups of flat solvmanifolds. This characterization is in terms of finite integral representations of free abelian groups and the associated cohomology. A classification of compact flat solvmanifolds follows, and a list of all compact flat solvmanifolds of dimensions 3, 4, and
openaire   +1 more source

Cohomology of D-complex manifolds [PDF]

open access: yes, 2012
In order to look for a well-behaved counterpart to Dolbeault cohomology in D-complex geometry, we study the de Rham cohomology of an almost D-complex manifold and its subgroups made up of the classes admitting invariant, respectively anti-invariant ...
Angella, Daniele   +1 more
core   +2 more sources

Ricci soliton solvmanifolds [PDF]

open access: yesJournal für die reine und angewandte Mathematik (Crelles Journal), 2011
18 pages, to appear in Crelle's ...
openaire   +3 more sources

Home - About - Disclaimer - Privacy